CONVEX!!!
Concave buttons irritate the piss out of me.
With the Neo Geo Convex buttons, there are multiple ways of hitting the buttons fast:
1.) Straight up and down, with the fingertips, esp if your fingernail extends beyond the tip of your finger, then the frequency of up/down seems to increase.
2.) Side to side. Because its convex, your fingertip will slide easily, on the tangent of your choice of the button's natural curve.
3.) Double tapping. Neo Geo standard stick buttons are perfect for double tapping. For those moments in Last Resort or Viewpoint where your hand and wrist gets tired from mashing the buttons at 10 times a second, you can use your index and middle fingertips to alternately tap the same button. Its sort of akin to double bass drums in heavy metal music.
I also believe concave buttons reduce blisters and callouses. Everytime I see them in the arcade i'm like, Argh, I wish I could use my NG controllers. They are the best i've ever used.
<small>[ March 26, 2003, 11:52 AM: Message edited by: Electroman ]</small>